PERFORMANCE, COMBUSTION AND EMISSION CHARACTERISTICS OF COPPER OXIDE NANOPARTICLES ADDITIVES WITH PINE OIL–DIESEL BLEND ON SINGLE CYLINDER FOUR STROKE DIESEL ENGINE

Abstract

For heavy duty applications like power generation and transportation, Compression Ignition (CI) engines have proved to be the best option. However, the drain of conventional fuels in speedy trends, growing prices, environmental issues, etc. has led attention in alternative sources of energy. A research study was performed to assess the combustion, performance and emission traits of fixed-speed compression ignition engine by incorporating copper oxide nanoparticles as a fuel additive in blends of pine oil biodiesel. The study examined B20 with copper oxide nanoparticles at concentrations of 25 ppm, 50 ppm, and 75 ppm under different engine loads while maintaining a consistent engine speed of 1500 rpm. Also, fuel properties such as density, flash point, calorific value, viscosity, pour point, cetane number and cloud point of blended samples were experimentally tested. The engine performance result shows that BP of all samples were comparable to Diesel and B20. IMEP of B20 + 50 ppm and SFC of B20 +75 ppm was found to be better than other samples. At higher load 12kg, BTE increment of 0.25%, 1.98%, 2.05% and 2.2% was observed for B20 and higher concentration of CuO additives respectively. Similarly, the combustion parameters Cylinder Pressure and Net Heat Release were also improved on rising concentration of CuO nanoparticle. The smoke opacity dropped by 2.98%, 3.73%, 20% and 25% for B20 and increasing doses of Nano additives samples. Tested data shows that the incorporation of CuO nanoparticles in pine oil biodiesel blends improves combustion, performance characteristics, and reduces smoke opacity significantly